Privilege escalation via supplementary groups in github.com/containerd/containerd
Supplementary groups are not set up properly inside a container. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases and potentially escalate privileges in the container. Uses of the containerd client library may also have improperly setup supplementary groups.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-25173US | high7.8OT elevated | — | ||
containerd is an open source container runtime. A bug was found in containerd prior to versions 1.6.18 and 1.5.18 where supplementary groups are not set up properly inside a contai… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/advisories/GHSA-4wjj-jwc9-2x96WEB
- https://github.com/advisories/GHSA-fjm8-m7m6-2fjpWEB
- https://github.com/advisories/GHSA-phjr-8j92-w5v7WEB
- https://github.com/containerd/containerd/commit/133f6bb6cd827ce35a5fb279c1ead12b9d21460aFIX
- https://github.com/containerd/containerd/security/advisories/GHSA-hmfx-3pcx-653pADVISORY
- https://github.com/moby/moby/security/advisories/GHSA-rc4r-wh2q-q6c4WEB
- https://www.benthamsgaze.org/2022/08/22/vulnerability-in-linux-containers-investigation-and-mitigation/ARTICLE
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